Vat mounting for a package carrier



` VAT MOUNTING FOR A PACKAGE CARRIER Filed 0013.` 31 1939 2Sheets-Sheeil l A TTORNEYS.

March 18, 1941. H. s. DRUM ETAL 1 '2,235,254

VAT MOUNTING FOR A PACKAGE CARRIER Filed Oct. 31. 1939 2 Sheets-Sheet 2INVENTORS? Patented Mar. 18, 1941 UNITED sT-ATlazs PATENTy OFFICE2,235,254 Y vA'r MOUNTING Foa A PACKAGE CARRIER vania Applicationoctober s1, 1939, serial No; 302,146

3 Claims.

The present invention relates to package treating apparatus and moreparticularly to a self controlled stabilized mountingr for a packagecarrier in a treating vat.

In the anchoring of a package carrier in a treating vat it hasheretofore been the .practice to locate the axial support'of the carrierin its proper place on the bottom of the vat, then close the vat covertok bring a clamp member over the upper end of the axial support, lockthe cover in position, and then turn down the clamp member until thecarrier isA anchored in place. Not only does this method add to the timerequired to mount the carrier in the vat but it Vhas the furtherdisadvantage of holding the carrier so rigidly that the action ofpressure or the eiects of expansion and contraction of the metal causedamage to the carrier parts. In other words the anchored carrier has nochance to ilex or compensate for undue pressure or the result oftemperature variations.

Some of the objects of the present invention are to provide an improvedmounting means for package carriers infa treating vat; to provide apackage mounting which automatically compensates for expansion andcontraction of its parts under variations of pressure; to provide apackage mounting which automatically compensates for pressure within thevat wherein the carrier is located; to provide a means for mounting apackage carrier within avat wherein it becomes unnecessary to manuallyoperate a clamping device to anchor the carri-er in position; to providea carrier mounting mechanism wherein a device of the vat lid clampingtype is eliminated; and to provide other improvements as willhereinafter appear.

In the accompanying drawings Fig. 1 represents a sectional elevation ofa treating tank showing a package carrier therein equipped with a,mounting embodying one form of the present invention; Fig. 2 representsa iront elevation of the mounting shown in Fig. 1 but on an enlargedscale; Fig. 3 represents a section on line 3-3 of Fig. 2; Fig. 4represents a section on line II-ll of Fig. 2; Fig. 5 represents a planof the device shown in Fig. 2; and Fig. 6 represents a sectionalelevation of a vat wherein a different type of carrier is used and amodied form of the invention.

Referring to the drawings, one form oi the invention is shown inconjunction with a treating vat I3 and package carrier II of the typehaving a manifold I2 and a, plurality of spindles I3 oppositely disposedon the manifold I2. A liquid cir- (Cl. (iS-198) culating pipe I4 isaxially disposed at the lower side of the manifold I2 and' terminates ina tapered tting I5 for ground joint seat-ing upon the .port I6 formed inthe bottom of the vat I0.

yLiquid can thus circulate through the pipe I4 to to eiect a liquidproof seal between the parts.

A guide cap I8 is attached to the cover I'I at a point to register withthe axis of the carrier when the'cover is closed and thus receive thetruncated head 20 of the carrier lift rod 2l to position it forengagementby a retainer keeper 22.

In order that the keeper 22 may yield under pressure upon the carrier, acoil spring 23 encircles the projecting end of the keeper 22 and is heldunder a set compression between a plate abutment 24 and an adjustablefollower nut 25. The abutment 24is a part of a collar 26 which isintegral with and forms one end of a loop shaped yoke 21. The oppositeend of the yoke 21 is coaxial with the collar 26 and is in the form ofan internally threaded hub 28 which screws on the externally threadedsleeve 30 which is a part of the cover I'I. A set screw 3| fastens thehub 28 to the sleeve 30. That portion of the keeper 22 which projectsinto the yoke 21 and is beyondv stuing box 32 is threaded to receive thefollower nut 25 which can be adjusted through Spanner holes 33 or thelike. The stuffing box 32 is adjustable by means of studs 34 so that thepacking therein protects the joint between the keeper 22 and the sleeve30. By the foregoing it will be seen that the keeper 22 is normallypressed against the end of the carrier by the spring 23.

but any excess counter pressure will allow the keeper 22 to yield andthereby relieve any abnormal strain o-n the carrier parts.

To limit the axial movement of the keeper 22,

` a stop nut 35 is threaded on the keeper end outside of the yoke 21 andby its adjustment determines the projected position of the keeper. Alock nut 3B maintains the set position of the stop nut 35. The extremityof the keeper 22 is of such a shape that it can be engaged by a suitableimplement to adjust the keeper relative to the yoke.

In the form of the invention shown in Fig. 6,

the vat 40 encloses a package carrier 4I of the 55 type which rests onthe bottom of the vat with package spindles 42 rising vertically fromthe base of the carrier. In this instance the lift member 43 of thecarrier is in the form of an open ended tube through which a rod 44extends for screw threaded engagement with the inlet member 45 of thevat.

In order to yieldingly hold the carrier 4| in place the protruding endof the rod 44 is threaded to receive a follower nut 46 between which andan annular flange 41 there is a coiled spring 48 encircling the rod 44.Radially disposed arms 50 provide means for manually adjusting the nut46 to place the spring 48 under the required compression for yieldingunder abnormal conditions within the vat. The flange 41 is arrangedinternally kof the member 43 and is welded or otherwise made fast inorder to take the thrust of the spring 48.

In assembling the carrier in the vat reference is had to the form shownin Fig. 1 wherein the spring or yielding unit is screwed tightly on thecover sleeve 30 and locked in place by the set screw 3|. With thepackage carrier in the vat the cover I1 is closed and clamped down tightby the usual clamping bolts, after which the follower nut 25 is fedalong the pin 22 until the spring 23 is compressed an ecient Workingdistance. In practice it has been found that a setting of three-quartersof an inch shorter than the free length works very satisfactorily. Thestop nut 35 is now adjustedfor a clearance of about one-eighth of aninch and is locked by the nut 3B.

From the foregoing it will be apparent that in both forms of theinvention, shown by way of example, that the carrier, unlike formerconstructions, is no longer a rigidly connected part of the vat, but thecontrary, while having sufficient rigidity to maintain the` carrieroperatively positioned in the vat, has a planned flexibility to permit arelative movement between the two units when necessary. Thus in case thepressure of steam in the vat becomes abnormal, and such as might distortthe carrier parts, the action is automatically compensated by theyielding of the spring which thus serves to absorb injurious movementThe same action takes place if the movement is caused by the expansionand contraction of the parts under variation of pressure.

Having thus described our invention, we claim:

1. In a package treating apparatus, the combination of a v-at, a packagecarrier, a lifting member on said carrier, a clamping pin passingthrough said vat to engage said member, a yoke attached to said vat toform a bearing for said pin, a spring coacting with said yoke and pin,and means to adjust the tension of said spring.

2.v In a package treating apparatus, the combination of a. vat, a yarnpackage carrier in said vat having an axially disposed upwardly directedextension, a clamping pin extending through the top of said vat insliding relation thereto and in co-axial relation to said extension, ayoke attached to said vat and forming upper and lower bearings for saidpin, said pin having an upper screw threaded portion, a spring coiledabout said pin, a. follower threaded on said pin to compress said springand hold said pin against the end of said extension with a selectedpressure, and a stufling box for preventing leakage about the portion ofsaid pin traversing said vat,

3. In a package treating apparatus, the combination of a. vat, a yarnpackage carrier in said vat having an axially disposed upwardly directedextension, a clamping pin extending through the top of said vat insliding relation thereto and in co-axial relation to said extension, ayoke attached to said vat but removable as a unit, upper and lowerbearings on said yoke for guiding said pin, an upper abutment plate onsaid yoke, a springl coiled about said pin and seating against saidplate, a follower threaded on said pin to engage the free end of sai-dspring and compress it against said abutment plate and thereby hold saidpin against the end of said extension, and adjustable means to limit theprojected position of said pin.

HARRY S. DRUM. WlLLIAM H. JAXI-IEIMER. ELMER E. SAALFRANK.

